Phillips 26PF5321/10 dead

[Thoir]

Appears to have no power no lights come on etc. It slowly died over a few weeks it would take 5 mins to turn on but now nothing. Any ideas where to start? I can add pics/more info if needed thanks.

[budm]

Re: Phillips 26PF5321/10 dead

Pictures are ALWAYS needed for sure so we can see what we are dealing with and how all the boards are connected together.

[Thoir]

Re: Phillips 26PF5321/10 dead

Ok I took a few pics the quality isn't great though


Overview (not including right side I think its the sound board)



Bottom-left



Top-left


Middle-left


Middle-right



Middle-top



Far-right

[budm]

Re: Phillips 26PF5321/10 dead

Can you also take the pictures that show the whole back side of the TV? I am trying to locate the backlights inverter board/s.
The fuse on the power supply board is OK?

[Thoir]

Re: Phillips 26PF5321/10 dead

Ye the fuse is good, there ins't really anything I missed in the other pics there are more boards under these I am going to take it off now.

[Thoir]

Re: Phillips 26PF5321/10 dead

I took off the back plate and under are these 3. Under that is the screen.

Left



Right



Top

[budm]

Re: Phillips 26PF5321/10 dead

OK, it uses two inverter boards.
The white connector on the right of the power supply board that goes to the main board, are there any labels for the pins of the connector? We need to know if we have any standby voltages or not.
BTW, can you provide what is printed on the BARCODE sticker of the power supply board?

[Thoir]

Re: Phillips 26PF5321/10 dead

I can't see any label for the power supply connector.. The barcode reads 2319NS07054001631

[Thoir]

Re: Phillips 26PF5321/10 dead

Bump

[budm]

Re: Phillips 26PF5321/10 dead

OK, I cannot find service manual for this chassis so you need to take straight shot pictures of the power supply board top and bottom sides so I can try tracing out the circuits.

[Thoir]

Re: Phillips 26PF5321/10 dead

I tried to get some better zoomed in pics but my camera isn't great..

Top



Middle



Bottom




Then the reverse side..

Top



Middle



Bottom

[Thoir]

Re: Phillips 26PF5321/10 dead

I found the service manual for this http://www.eserviceinfo.com/download..._26PF5321.html

[tom66]

Re: Phillips 26PF5321/10 dead

I have worked on the hotel version (26HF5321) of this set before. Mine had a blown fuse on the power board outputs, on the secondary side. I doubt that would cause your intermittent symptom but could cause the TV to act dead. Replacing the fuse fixed the issue.

[budm]

Re: Phillips 26PF5321/10 dead

There are two red rectangular box fuses by the connector, are they OK, just to be sure?
I am having hard time with the pictures trying to trace the board, will look at the SCH next.

[Thoir]

Re: Phillips 26PF5321/10 dead

I only have a cheap multimeter but they are making a connection still. I tried the 3 red fuses they all seem ok. Thanks for your help guys so far I'm fairly new to electronics repair..

[Thoir]

Re: Phillips 26PF5321/10 dead

Any ideas guys?

[Thoir]

Re: Phillips 26PF5321/10 dead

bump

[budm]

Re: Phillips 26PF5321/10 dead

I tried but I could not use your pictures to trace out the bottom side of the board, too much glares and they are not straight shot pictures and not well focused.

[Thoir]

Re: Phillips 26PF5321/10 dead

What bout the service manual http://www.eserviceinfo.com/download..._26PF5321.html any good?

[budm]

Re: Phillips 26PF5321/10 dead

The power supply for the 26" and 32" is made by other OEM so Philips does not provide the diagram in that service manual, they provide the power supply diagrams for the 37" and 42".